Window



June 13, 1939.

WINDOW Filed April 30, 1938 3 Sheets-Sheet l w. p. BAYLEY 2,162,601

W. D. BAYLEY June 13, 1939.

WINDOW Filed April 30, 1938 s Sheets-Sheet 2 BY @w A,

INVENTOR.

' :TTORNEY.

l w. D. BAYLEY June 13, 1939.

WINDOW Filed April 30, 1938 3 Sheets-Sheet 3 INVENTOR romws Y PatentedJune 13, 1939 UNITED STATES PATENT OFFICE 24 Claims.

This invention relates to windows and in more particular to metallic orfabricated windows, terminating in spaced relation from the masonryextending along the bottom of the opening.

This application is a continuation-in-part of my copending applicationSerial No. 115,752, filed Dec. 14, 1936 for Detention window and methodof glazing same.

In the construction of metallic windows, especially metallic windowsutilizing metals that are very susceptible to electrolytic action in thepresence of moisture and the masonry bounding the window, the metallicportions eat away or corrode most rapidly along the sill of the window.This corrosion presents a very serious problem in certain industries, asfor example, the packing industry, where there is a great amount ofsteam and vapor present in the air. In such places it is necessary toreplace the windows at intervals, due to corrosion along the sill.

An object of this invention relates to the method of constructing andarranging the masonry surrounding the window.

Another object of this invention is to provide '25. a sill-less windowwherein the lower glass pane is embedded in the masonry extending alongthe bottom of the window.

Another object of this invention is to provide a window that is cheap,efficient, easily constructed, but at the same time dependable.

Another object of this invention is to reenforce the bottom portion of ametallic frame structure.

Another object of this invention is to provide a main body portion of awindow structure that terminates in spaced relation from the bottom ofthe window opening and an auxiliary structure disposed intermediate themain frame portion and the bottom of the window opening.

Another object of this invention is to provide a fabricated window framestructure for a portion of the window opening and a cast frame portionfor the remainder of the window opening.

Other objects and advantages reside in the construction of parts, thecombination thereof and the mode of operation, as will become moreapparent from the following description.

In the drawings,

Fig. 1 is a front View of a window.

Fig. 2 is a vertical sectional view taken substantially on the line 2-2of Fig. 1.

Fig. 3 is a horizontal sectional view taken substantially on the line3.-3 of Fig. 2.

Fig. 4 is a fragmentary sectional view of a modification.

Fig. 5 is a fragmentary sectional view taken substantially on the line5-5 of Fig. 4.

Fig. 6 is another fragmentary sectional view similar to Fig. 4; butlooking in the opposite direction.

Fig. '7 is a fragmentary front View of another modification.

Fig. 8 is a fragmentary sectional view taken substantially on the line8-8 of Fig. '7.

Fig. 9 is a horizontal sectional view of another modification showingH-shaped muntin bars.

Fig. 10 is a sectional View of another modification.

Fig. 11 is a sectional view taken substantially on the line ll|l of Fig.10.

Fig. 12 is a sectional view of a form-structure suitable for use inmaking the sill disclosed in Fig. 10.

Fig. 13 is a fragmentary sectional view of another modification. 0

Fig. 14 is a fragmentary sectional view of another modification of aform-structure detail.

In metallic window constructions, both for use in commercial buildingsand for use in penal institutions, the metallic parts such as steel incontact with the masonry, will corrode in certain parts of the windowstructure, particularly along the sill portion. The corrosion commonlyspreads upwardly to the portions that project upwardly from the masonry.Use has demonstrated, par- 30 'ticularly in packing houses and elsewherewhere windows are subjected to steam and to chemical fumes, that thelife of the bottom horizontal portion of a steel window is much shorterthan the life of other portions of the window. A reason 35 for this isthat the bottom portion is sometimes partially embedded in the masonryand therefore inaccessible for repainting. Moisture and dampness is acommon condition thereof. It is a well known electrochemical phenomenonthat electrolysis will erode the metal when in the presence of moistureand in the presence of other chemical elements or compounds thereof. Theupper portions of the window are better positioned to drain and aretherefore not subject to 45 as much moisture as the sill portion.

It is not only water that may give trouble; but chemicals added to thewater will accelerate this erosion. In factories where chemical fumesare prevalent or where chemical dust particles float in the air, theerosion may be greatly accelerated, so that the metallic sill portion ofthe window is eatenaway in a comparatively short time.

It is not commercial windows alone that may be thus affected. Detentionwindows are alsom liable to have a greater weakness due to the type ofsteel used in detention bars. Corrosion of the detention bars resultingin a failure may be disastrous. Attempts have been made to Bonderize orParkerize the exposed portions of the metallic windows; but this has notproved very satisfactory, as the treatment of the surface of themetallic parts is not very effective over a period of years.

In the present embodiment this problem has been solved by terminatingthe metallic structure in spaced relation from the masonry extendingalong the bottom of the window opening. By so doing, no metal comes incontact with the masonry. The space between the masonry along the bottomof the window and the lowest portion of the metallic frame structure isclosed by glazing, having the upper edge seated against the lowestportion of the metallic frame and the lower edge secured directly to themasonry extending across the bottom of the window by putty or othersuitable plastic material.

In the preferred embodiment an arrangement of channels has been madewherein it is possible to seat the glazing in channels on all sideswithout having a side of the channel removable. This has beenaccomplished by providing oppositely disposed end channels, at least oneof which is suiiiciently deep to pass the window pane into the channeland slip the opposite edge of the window pane into the other endchannel. In order to do this it has been found necessary to make thechannel along one side of the window pane sufiiciently Wide so as toprovide clearance beyond the face of the muntin bar for the window pane.In other words, the channel in the wall has been made sufficiently wideso as to extend beyond the inner face of the muntin bar a distancesufiiciently great to accommodate the thickness of the glazing.

In commercial windows, that is, windows used in buildings other thanpenal institutions, the metallic fabricated frame is constructed toterminate in spaced relation from the bottom of the window. Theintervening space between the bottom of the window and the fabricatedframe may be provided with a cast frame, which is inherent ly slowcorroding. As a further safeguard, this cast frame may be removablymounted for replacement whenever it has corroded beyond usefulness. Insome installations, the space along the bottom may be used as aventilating area, closed by a movably mounted closure. This permits theuse of a comparatively cheap frame structure for the main portion of thewindow, wherein the more vulnerable portion of the window is providedwith a frame that is made from material having rust resistant qualitiesand which may be replaced whenever the useful life thereof has ended.

Referring to the drawings, the reference character indicates a pluralityof vertically disposed detention bars having the upper ends seated inthe masonry 22 bounding the ventilating area. The detention bars areheld in fixed spaced relation by a plurality of transversely disposedduo-functional rail and muntin bars 24. The ends of the muntin bars 24preferably extend into the masonry bounding the window opening.

The lower ends of the detention bars 20 are arranged in spaced relationfrom the masonry 26 extending across the bottom of the Window. Themasonry along the bottom may include a horizontal portion 28, a shoulder30 and a sloping portion 32. It has been found that the bottomhorizontal rail which contacts the sill of the building, and other barswhich come close to the sill, rust and deteriorate rapidly. In order toeliminate this rusting and deterioration the lower horizontal and lowerends of the detention bars have been arranged in spaced relation fromthe masonry or other wall material extending across the bottom of thewindow.

In order to provide a satisfactory support for the lower portion of thedetention bars, the lowor duo-functional rail and muntin bar designatedby the reference numeral 34 has been spaced only a short distance fromthe masonry extending across the bottom of the window. The spacing ofthe sill may be only an inch, two inches, or possibly four or fiveinches from the bottom. The duo-functional rail and muntin bar 34 may beof heavier material, or differently shaped than the other rail bars.This structure requires a bar of much greater strength than if thedetention bars were embedded in the masonry long the bottom of thewindow. In some respects, the duo-functional rail and muntin bar may bereferred to as a sill, supporting the lower end of the detention bar 20.

The duo-functional rail and muntin bars 24 and 3.4, respectively, arepreferably provided with a slightly sloping portion 36 terminating in adownwardly projecting flange 38 extending along the outside of thedetention bars 20. The slope of portion 36 expedit'es water drainage.The opposite end of the downwardly sloping portion 36 supports and isintegral with an H-shaped portion 40. The upper channel 42 is smaller orshallower than the lower channel 44 and these channels receive theclosure.

As the duo-functional muntin and rail bars 24 and 34 respectively, havetheir outer ends seated in the masonry bounding the window, the outsideframe of the conventional windows has been eliminated.

By referring to Fig. 3, it can be readily seen that the channel 50 inthe masonry on the right hand side is much narrower than the channel 52shown on the left hand side in Fig. 3. The spacer bar 56, suitablywelded to the muntin bars 24 and 34, forms an inner wall for the channel52. The channels may be formed by suitable form members described in myapplication Serial No. 115,752 filed Dec. 14, 1936 for Detention windowand method of glazing same. The method of inserting the glazing has alsobeen fully described in the above referred to application.

In the modification disclosed in Figs. 4, 5 and.

6, like reference numerals have been used to indi- I cate parts likethose shown in the preferred em.- bodiment. In this modificationpost-like tubular member 60, embedded in the masonry along the bottom ofthe window, extends upwardly and encloses the lower end 62 of one of thevertical bars 20, so as to strengthen and reenforce the lower portion ofthe window structure. One or more of these tubular members may be used,depending upon the size of the window and the requirements thereof. Theupper end of the tubular member 60 is seated between the H-shapedportion 40 and the downwardly projecting flange portion 38 of the muntinbar 34, so that the muntin bar 34 forms a capping member for the tubularportion, thereby preventing water from collecting within the tubularmember. This postlike member functions. to provide weight bearingsupports and it may also provide supports for the glazing panes of lesswidth than the width of the window. This post-like member may be madefrom cast material, from suitable vitreous or ceramic material ortiling. In the modification disclosed, a web 64 cooperates with a bodyportion 66 to form a glazing seat supporting the glazing extending alongthe bottom of the window. Portion 66 may be integral with thetubularsleeve 60 or it may be welded thereto, or secured thereto in anyother suitable manner. This tubular sleeve, or post-like member, hasbeen shown in aligned relation with respect to one of the detentionbars. It need not necessarily be aligned with a detention bar. It may beoff-set from the detention bars. Instead of one post-like member 69, anydesired number may be used.

The preferred embodiment and the modification described above areparticularly suitable for use as detention windows built into a railguard assembly or security window for use in preventing trespassing.

In the modifications disclosed in Figs. '7 to 9, the upper portion,including the transversely disposed muntin bars Ill and I2, has beenmade from rolled steel and simulates any of the conventional commercialmetallic windows now on the. market. The bottom muntin bar I4 isarranged in spaced relation from the bottom of the window opening. Thisis to prevent corrosion of the main portion of the window. The corrosionis the greatest along the bottom of the window, that is, where themetallic parts, especially metallic parts made of rolled steel, come incontact with the masonry along the bottom. This corrosion may be in partdue to lack of sufficient drainage.

In some types of structures a single pane may be used. The window panehas the upper portion thereof supported by the lower portion of themetallic frame and the extreme sides and the bottom edges of the windowpane supported by masonry bounding the opening. This type of structurehas its limitation. It is excellent in small windows; but impracticalfor large windows, especially where the span is comparatively great orfor some other reason a single window pane is not satisfactory. In suchstructures several window panes are arranged longitudinally across thewindow below the lowest muntin bar. These window panes may be supportedby post-like members 60 or independently thereof.

An auxiliary cast metal frame 8!! may be used for enclosing the lowerportion of the window opening and for supporting the lower portion ofthe fabricated main frame. The cast frame 39 may include a sill portion82 provided with a downwardly projecting flange 84, as shown in Fig. 8,and vertical muntin bar sections 86 of any suitable contour. Bars 85 maybe T-shaped as used in Figs. '7 and 8, or H-shaped bars I 86, as shownin Fig. 9, may be used, wherein the channel along one side designated byreference character 88 is of less depth than the channel 95! on theopposite side. The side portions 92 probably would be provided withoutwardly projecting flanges 94 adapted to face the masonry. The castmetal frame provides a slow corroding portion for the more vulnerableportion of the window. The smaller portion of the window subject to thegreatest effect of the elements may be renewable.

The upper ends of the muntin bar sections 36 may be provided withupwardly extending projections 89 passing through the sill I4 of thefabricated frame portion, so as to position the main frame portion andthe auxiliary frame portion in fixed relation with respect to eachother;

zontal bar connecting the upper window the masonry so as to have theproper relation with The lower frame may be secured to either the upperframe or to the masonry or to both. The muntin bar "I4 may be providedwith a downward- 1y projecting portion 96 and may also be provided withanother downwardly projecting portion 98. The web portion of the muntinbar sections 86 is preferably projected up against the web of bar M.This lower frame portion need not have an upper horizontal bar or theremay be a horiends of members 86 and 92. The stem or the portioncorresponding to the stem of member 82 is preferably curved, so as topermit removal of this lower frame and replacement thereof, should fatalcorrosion occur.

In the modification disclosed in Fig. 10, instead of an auxiliary frameportion being used, muntin bar sections I00 have been mounted betweenthe sill .4 of the fabricated main window portion and the masonryextending along the bottom of the window. Either one or both ends of themuntin bar sections I00 may be provided with laterally extending earsI02 and I04. The ear I02 is provided with a suitable aperture forreceiving the bolt I03 embedded in the masonry extending across thebottom of the window. The bolt I08 extends through a suitable aperturein the ear I04 registering with an aperture in the muntin bar I4. Thebolts 566 and I08 cooperate to hold the muntin bar sections in fixedposition with respect to the fabricated window frame and the masonryalong the sill of the window. Either one of these bolts may beeliminated for some installations where only one end of the muntin barsection I00 is secured in position. Any other suitable means forsecuring the auxiliary frame in position may ing rod I I0 may be locatedin any suitable position' in the muntin bar sections I110. The muntinbar sections Iilll may be T-shaped, I-shaped, H-shaped or any othershape.

The bolts I06 must be accurately positioned in respect to the windowstructure. A slight displacement of the bolts or a slight misalignmentis very noticeable. The bolts I96 may be positioned in the masonryacross the bottom of the window opening by mounting these bolts in thewood forms for shaping the concrete, as best seen in Fig. 12. Theseforms may include verticals H2 and a pair of capping members H4 and H6,the capping member I I4 being inclined and extending beyond the lowersurface of the capping member I I5. A suitable strip of sheet metal II8, provided with properly spaced apertures, is used to tie the cappingmembers H4 and H6 together and to form supports and seats for the boltsI06, which are thereby properly positioned relative to the grooves whichposition the window.

In the modification disclosed in Fig. 13 a stub muntin bar I20 spanningthe bottom portion of the window is attached to the muntin bar I4 of thefabricated window structure. The muntin bar lit is preferably T-shapedin cross sectional area. The web of the muntin bar near the end isprovided with an elongated U-shaped cut-away portion 522. A nut I24 iswelded to the sides of the. U-shaped cut-out portion. This nut I24 isarranged to receive a bolt I26 in the muntin bar 14. By this arrangementthe ear portion I04 disclosed therefor.

Instead of having a fixed closure for the portion of the opening belowthe fabricated window frame, a movable closure, either pivotallyattached or slidably mounted, or otherwise secured in position, may beused for closing the area below the fixed fabricated window and thebottom of the opening in the wall, so as to utilize this opening as aventilating area.

In Fig. 14 another modification for forming the rabbet along the bottomof the window has been disclosed. In this modification the lower muntinbar I4 of the fabricated window structure supports a suitable studdingI30 extending from the muntin bar to the top line I32 of the masonrywhen it is placed in position. The studding I30 supports a form memberI34 which may be suitably dimensioned and held in position by nails I36,screws or the like. Members I30 and I34 are suspended from the muntinbar I4 and may be held in position by suitable nails or screws I38. Theform member I34 through member I30 accurately positions the seat orchannel in the masonry along the bottom of the window. This is verydesirable, in that the seat along the bottom of the window wants to beproperly aligned, so that the glazing of this lower portion may have itsplace in relationship to both the window members 14 and the masonry.

Instead of forming the sill in situ, that is, pouring the concrete intothe forms below the window and positioning the bolts therein or thechannels therein, as the case may be, the sill may be molded elsewhereor fabricated and then placed in position while the building isconstructed. In this event, the bolts would then be embedded in the sillwhile it is manufactured or the proper channels or other securing meansformed and the bolts or the securing means properly aligned with thefabricated portion of the window frame terminating in spaced relationfrom the sill, so as to accommodate any suitable type of closure forclosing the space between the lower edge of the window frame and thebottom of the window opening.

Masonry, as used in the specification and claims, has been used todesignate generically the building material used, such as concrete,stone, brick, tile, molding materials, or any other suitable buildingmaterial.

Although the preferred modification of the device has been described, itwill be understood that within the purview of this invention variouschanges may be made in the form, details, proportion and arrangement ofparts which generally stated consist in a device capable of carrying outthe objects set forth, in the novel parts, combination of parts and modeof operation, as disclosed and defined in the appended claims.

Having thus described my invention, I claim:

1. A window assembly for use in an opening in a wall of masonry, saidassembly including a metallic frame mounted in spaced relation from thebottom of the window opening so as to leave an open space between theframe and the bottom of the opening, and a window pane disposed in thespace found between the window frame and the bottom of the windowopening.

2. A window assembly for use in an opening in a wall of masonry, saidwindow including a metallic frame structure mounted in the windowopening in spaced relation from the bottom thereof, said frame structureterminating in a muntin bar along the bottom thereof, said muntin barbeing disposed in spaced relation from the bottom of the window opening,and a window pane disposed below the metallic frame structure,

said window pane having its upper edge supported on said muntin bar andthe bottom edge seated upon the masonry extending across the bottom ofthe window opening.

3. A detention window assembly including a frame structure having aplurality of detention bars held in fixed spaced relation by a pluralityof transversely disposed muntin bars, the frame assembly being arrangedin spaced relation from th masonry extending across the bottom of thewindow, window panes supported upon the muntin bars, and a window paneextending across the bottom of the window opening having its upper edgesupported by the lowest muntin bar and having the bottom edge seated inthe masonry across the bottom of the window.

4. A detention window assembly including a rail guard having a pluralityof vertically disposed detention bars terminating in spaced relationfrom the bottom of the window opening and a plurailty of transverselydisposed duofunctional rail and muntin bars for holding the detentionbars in fixed spaced relation, the lowest muntin bar being disposed inspaced relation from the bottom of the window opening, said lowestmuntin bar cooperating with the bottom of the window opening to form aspace too small for the ingress and egress of a human body, and glazingextending over said space.

5. A detention window assembly for a windou opening in a wall ofmasonry, said assembly including a rail guard having a plurality ofverti cally disposed detention bars terminating in spaced relation fromthe bottom of the window opening and a plurality of transverselydisposed duo-functional rail and muntin bars for holding the detentionbars in fixed spaced relation, the lowest muntin bar being disposed inspaced relation from the bottom of the window opening said lowest muntinbar cooperating with the bot tom of the window opening to form a spacetoo small for the ingress and egress of a human body, means embedded inthe masonry across the bottom of the window for reenforcing said lowestmuntin bar, and glazing extending over said space, said glazing havingthe lower edge supported upon the masonry.

6. A detention window assembly for a window opening in a wall ofmasonry, said assembly including a rail guard having a plurality ofhorizontally disposed duo-functional muntin and rail bars having theopposite ends embedded in the masonry bounding the window opening and aplurality of vertically disposed detention bars interlocking the muntinbars, the detention bars projecting through the lowest muntin bar butterminating in spaced relation from the masonry extending across thebottom of the window, and means embedded in the masonry extending alongthe bottom of the window projecting upwardly to engage at least one ofthe detention bars to reenforce the window assembly.

7. A detention window assembly for a window opening in a wall ofmasonry, said assembly including a rail guard having a plurality ofhorizontally disposed duo-functional muntin and rail bars projectinginto the masonry along the opposite sides of the window opening and aplurality of vertically disposed detention bars passing through openingsin the duo-functional muntin and rail bars, the detention barsterminating in spaced relation from the masonry extending across thebottom of the window opening, and a tubular member embedded in themasonry along the bottom of the window projecting upwardly andencircling the lower end of one of the detention bars to reenforce thebottom of the rail guard.

8. A detention window assembly for a window opening in a wall ofmasonry, said assembly including a rail guard having a plurality ofhorizontally disposed duo-functional rail and muntin bars projectinginto the masonry along the sides of the window opening and a pluralityof vertically disposed detention bars interlocking the rail bars, thedetention bars terminating in spaced relation from the masonry extendingacross the bottom of the window, the lowest duo-functional detention andmuntin bar cooperating with the masonry extending across the bottom ofthe window to form a space too small for the free ingress and egress ofa human body therethrough, and a tubular member embedded in the masonryalong the bottom of the window projecting upwardly to encircle one ofthe detention bars, said tubular member having an outwardly projectingweb adapted to extend intermediate adjacent window panes so as to form asupport therefor, the tubular member reenforcing the bottom of the railguard.

9. A detention window assembly for use in a window opening in a Wall ofmasonry, said assembly including a rail guard having a plurality ofhorizontally disposed duo-functional muntin and detention bars havingapertures and projecting into the masonry bounding the window, each ofsaid duo-functional muntin and rail bars including a downwardlyprojecting flange on one side and a downwardly projecting H-shaped crosssectional structure on the other side and a plurality of verticallydisposed detention bars passing through openings in the duo-functionalmuntin and rail bars and extending intermediate the downwardlyprojecting flange and the H-shaped structure, the detention barsterminating in spaced relation from the masonry extending across thebottom of the window but below the lowest duo-functional muntin and railbar, and a tubular reinforcing member embedded in the masonry extendingacross the bottom of the window, said tubular member projecting upwardlyto encircle the lower end of one of the detention bars and having itsupper end seated between the detention bar and the flange on the oneside and the detention bar and the H-shaped structure on the other side,the flange and the H-shaped structure providing a rainshed for the.upper end of the tubular member.

10. A metallic window assembly for use in a window opening in a wall ofmasonry, said assembly including a metallic frame terminating in spacedrelation from the bottomof the window opening so as to leave an openspace between the frame and the bottom of the opening, rust resistingreenforcing means secured at spaced intervals to the masonry along thebottom of the opening, said means projecting upwardly so as to" engageand reenforce the lower portion of the metallic frame.

11. A window assembly for use in a window opening in a wall of masonry,saidassembly including a metallic frame mounted in spaced relation fromthe bottom of the window opening so as to leave an open space betweenthe frame and the bottom of the opening, and a tubular reenforcingmember secured to the masonry along the bottom of the window projectingupwardly so as to engage and reenforce the lower portion of the metallicwindow frame.

12. A window assembly for use in a window opening in a wall of masonry,said assembly including a metallic frame having a plurality of verticalmuntin bars, said metallic frame, including said muntin bars,terminating in spaced relation from the bottom of the window opening soas to leave an open space between the frame and the bottom of theopening, and a rust resistant reenforcing member secured to the masonryextending along the bottom of the opening and projecting upwardly intoengagement with the lower portion of the metallic frame so as toreenforce the same.

13. A window assembly for use in a window opening in a wall of masonry,said assembly including a metallic frame having vertically disposedmuntin bars arranged in spaced relation, said metallic frame, includingsaid muntin bars, terminating in spaced relation from the bottom of thewindow opening, so as to leave an open space between the frame and thebottom of the opening, and reenforcing means aligned with at least oneof the muntin bars and secured to the masonry extending along the bottomof the window projecting upwardly into engagement with the window frameso as to reenforce the same.

l l. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic frame having aplurality of vertically disposed bars arranged in spaced relation, saidmetallic frame, including the bars, terminating in spaced relation fromthe bottom of the window opening so as to leave an open space betweenthe metallic frame and the bottom of the opening, an annular portionaligned with one of said bars and projecting downwardly a short distancefrom the bottom of the metallic frame but in spaced relation from themasonry along the bottom of the window opening, and a tubularreenforcing member secured to the bottom of the masonry projectingupwardly and snugly enclosing said downwardly projecting annular portionso as to reenforce the bottom of the metallic frame.

15. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the window opening, andan auxiliary frame mounted beneath said main frame, said auxiliary framebeing movable outwardly without disturbing the main frame.

16. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the window opening, andan auxiliary metallic frame for the space below the main frame, saidauxiliary frame constituting a unitary cast metal structure having aplurality of upwardly projecting muntin bar sections aligned with muntinbars of the main frame, said auxiliary frame being removably attached inposition for replacement without disturbing the main frame.

17. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the window opening, andauxiliary means for supporting sheet material extending below the mainframe, said auxiliary means including muntin bar sections removablyattached in position to permit replacement of said auxiliary meanswithout disturbing the main frame.

18. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the window opening. andauxiliary means for supporting sheet material mounted below the mainframe, said auxiliary means including a plurality of muntin barsections, each of which has one end attached to the main frame and theother end attached to the masonry extending along the bottom of thewindow opening.

19. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely. disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the window opening, andauxiliary means for supporting sheet material below the main frame, saidauxiliary means including a cast metal frame structure having upwardlyprojecting muntin bar portions, each of the upwardly projecting muntinbar portions having rivets cast therein, said rivets projecting throughthe bottom of the main frame for holding the auxiliary means in fixedrelation with respect to the main frame.

20. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the win dow opening,auxiliary means for supporting the glazing extending below the mainframe, said auxiliary means including muntin bar sections having thelower ends in contact with the masonry extending along the bottom of theopening and the upper ends in engagement with the lowest muntin bar ofthe main frame, and means for securing said muntin bar sections inposition, said means including a nut fixedly attached to the muntin barcooperating with a bolt passing through the lowest muntin bar andthreadedly engaging the nut.

21. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the window opening, thebar extending across the bottom of the frame having a downwardlyprojecting flange, and closure means having a greater resistance tocorrosion than the main frame of the window for closing the spaceintermediate the main frame and the bottom of the window opening, saidclosure means including sealing material engaging one side of saiddownwardly projecting flange.

22. A metallic window assembly for use in a window opening in a wall ofmasonry, said window assembly including a metallic fabricated main framehaving a plurality of transversely disposed muntin bars dividing thewindow into a plurality of spaces, said main frame terminating in spacedrelation from the bottom of the window opening so as to leave an openspace between the main frame and the bottom of the window opening, thebar along the bottom of the window having a downwardly projectingflange, the masonry across the bottom of the window having a verticalshoulder, and closure means for the opening below the main frame, saidclosure means having sealing material contacting the downwardlyprojecting flange and sealing material on the opposite side of theclosure means for contacting the shoulder to provide water tightness.

23. A rail guard window assembly including guard bars, horizontal muntinbars provided with glazing seats for supporting glazing above and belowthe muntin bar, said muntin bar including a guard bar supporting portionprojecting outwardly from the glazing sloping downwardly from the edgeof the glazing so as to provide water drainage and terminating in adownwardly directed flange portion strengthening the muntin bar.

24. A metallic window assembly for use in an opening in a wall ofmasonry, said assembly including a metallic frame having at least onehorizontally disposed muntin bar extending across the bottom of theframe arranged in spaced relation from the masonry extending across thebottom of the window, glazing mounted in the window frame and a closurefor the space between the bottom of the frame and the masonry extendingacross the bottom of the window opening, said closure having its lowestedge supported upon the masonry and the upper portion in contact withsaid frame.

WILLIAM D. BAYLEY.

